Satellite observations indicate that Greenland's glaciers have been dumping ice into the Atlantic Ocean at a rate that's doubled over the past five years, researchers reported here on Thursday. The findings add yet another factor to the long-running debate over the effect of climate change on the world's ice sheets and sea levels.

Some of you have heard me reference this phenomenon a few times lately. There was an episode of NOVA Science Now on PBS which highlighted these findings and how the melted water is actually pushing the glacier up and away from the polar cap, exacerbating the melting.